<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../reactBag/react.development.js"></script>
    <script src="../reactBag/react-dom.development.js"></script>
    <script src="../reactBag/babel.min.js"></script>
</head>
<body>
    <div id="app"></div>

    <script type="text/babel">
        class App extends React.Component{
            state = {
                isHot : true
            }

            render(){
                const {isHot} = this.state
                    if(isHot){
                        return (
                            <div>
                                
                            <p>天气冷</p>

                            </div>
                        )
                    } else{
                        return (
                            <div>
                                
                            <p>天气热</p>

                            </div>
                        )
                    }

            }
        }

        ReactDOM.createRoot(document.getElementById('app')).render(<App/>)

    </script>

</body>
</html>